Solar record-breaking China aims for 50GW installed in 2017

October 20, 2017 by  
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China , a consistent leader in solar power production and installation, is having another banner year with 25 gigawatts of solar energy being installed in June and July alone. It is estimated that China is capable of installing over 50GW of solar energy by the end of 2017. As of October 1, approximately 42GW of solar energy had been installed, though the pace of installations is expected to slow in October. Although China’s solar boom yields economic benefits, an self-interest understanding of the need to protect the environment also drives the movement. “Any harm we inflict on nature will eventually return to haunt us,” said Chinese President Xi Jinping at the National Congress of China’s Communist Party. “This is a reality we have to face.” Much of the recent growth has been concentrated in the non-utility distributed solar sector, in part because China is pushing a new program called Top Runner, which aims to install more efficient solar panels in smaller projects. By any measure, China is absolutely dominating the global solar race. In 2016, the nation of nearly 1.4 billion people installed 34GW of solar power, the most ever by any country in a single year. In contrast, the United States , in the second place position for added capacity in 2016, added only 14.6GW of solar power. Related: China announces plan to ban sales of fossil fuel cars and shift focus to EVs Although China’s solar energy domination has proven to be valuable in the export market, with many of the components for solar systems around the world being produced locally, the domestic impact of its deliberate, consistent investment in solar energy is undeniable. In transforming its energy economy, out of necessity and strategy, China may provide important global climate leadership in a time when the United States has ceded its authority in this realm. “Taking a driving seat in international cooperation to respond to climate change, China has become an important participant, contributor, and torchbearer in the global endeavor for ecological civilization,” said President Xi Jinping. “[China must] develop a new model of modernization with humans developing in harmony with nature.” Via Electrek Images via Depositphotos and Wikimedia

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Solar record-breaking China aims for 50GW installed in 2017

New concrete roof includes thin-film PV cells to generate power

October 20, 2017 by  
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Digital design and fabrication techniques allowed researchers in Switzerland to create a curvy, super thin concrete roof that will one day help a residential unit produce more power than it consumes. Using the innovative methods, the researchers assembled the roof with much less materials than would otherwise be needed. The concrete roof is also equipped with thin-film photovoltaic cells to generate energy. Researchers at the Swiss Federal Institute of Technology Zurich (ETH Zurich) recently unveiled the prototype for a sinuous, self-supporting concrete roof. The roof is comprised of multiple layers, including concrete , heating and cooling coils, insulation, and more concrete fitted with thin film solar cells. The prototype was around 25-feet-tall, with a surface area of around 1,722 feet squared. The average thickness of the concrete was around two inches; the support surfaces had a thickness of 4.7 inches and the edges of the roof were just around one inch thick. Related: The company that offered integrated solar roofs before Elon Musk A cable net supporting a polymer textile provided the formwork for the concrete roof. The researchers used a precise concrete mix, fluid enough to be sprayed but firm enough to not flow off. Professor of Architecture and Structures Philippe Block said in a statement, “We’ve shown that it’s possible to build an exciting thin concrete shell structure using a lightweight, flexible formwork, thus demonstrating that complex concrete structures can be formed without wasting large amounts of material for their construction.” The prototype has already been dismantled to make room for other experiments, but in 2018, the roof will be erected atop materials science and technology research institute Empa ‘s HiLo Penthouse. Guest faculty will live and work in the penthouse, which is expected to produce more energy that it uses thanks to the concrete roof’s solar cells and what ETH Zurich described as an adaptive solar facade . Via ETH Zurich Images © Block Research Group, ETH Zurich/Michael Lyrenmann and © Block Research Group, ETH Zurich/Naida Iljazovic

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New concrete roof includes thin-film PV cells to generate power

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